124511215013 has 2 divisors, whose sum is σ = 124511215014. Its totient is φ = 124511215012.

The previous prime is 124511214943. The next prime is 124511215061. The reversal of 124511215013 is 310512115421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101950574209 + 22560640804 = 319297^2 + 150202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124511215013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124511215813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62255607506 + 62255607507.

It is an arithmetic number, because the mean of its divisors is an integer number (62255607507).

Almost surely, 2^124511215013 is an apocalyptic number.

It is an amenable number.

124511215013 is a deficient number, since it is larger than the sum of its proper divisors (1).

124511215013 is an equidigital number, since it uses as much as digits as its factorization.

124511215013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 124511215013 in words is "one hundred twenty-four billion, five hundred eleven million, two hundred fifteen thousand, thirteen".